Double fitting for sewage pipe connections



July 19, 1949. e. F. RADCLIFFE 2,476,908

DQUBLE FITTING FOR SEWAGE PIPE CONNECTIONS Filed Sept. 7, 1946 I I! 1 I'1 1 I11 1 INVENTOR.

5 "-LL I ATTORNEY Patented July 19, 1949 DOUBLE FITTING FOR SEWAGE PIPECONNECTIONS George; F. Radcliffe, San Diego, Calif.

Application September 7, 1945, Serial No. 695,402

8 Claims. 1

My invention relates to double fittings for sewage pipe connections,particularly the form of connection known as vented soil pipe fittingsemployed in plumbing for two separate water closets; and its objects areto bringabout a better and more efiicient means for the disposal ofsewage coming through bends from said closets and being discharged intothe main run of pipe while providing a more effective means of ventingthe same; to effect a saving in space between floor and ceiling ofbuilding structures for'the installation of double fittings without thenecessity of the cutting of joist or use. of false floors or ceilings;to prevent the formation of turbulence or cross currents at theconfluence of the sewage streams coming from the closets with the bodyof sewage flowing through the main and by the use of directionalpartitions to accomplish such confluencev in the general direction :offlow therethrough; to provide ample drainage for a, large number ofclosets and disposition of sewage coming therefrom; and generally toprovide a double pipe fitting which is simple and economical ofconstruction, .eifici'ent in action, and of prolonged life anddurability. These and other objects will appear from the drawing and ashereinafter described and set forth.

At the present time, the type of double pipe fitting designed to behorizontally disposed and commonly used in the plumbingtrade laterallyto connect the bends of two water closets with the main sewage artery,is cumhrous and unwieldy and takes up considerable vertical spacebetween floor and ceiling, so much so that it is often necessary toprovide. false floors or ceilings, usually at least twentyainehes; forsuch between space. Also in such fittingsythe confluence ofthe-tributory closet streams flowing at; substantially right; anglesintothe main streamof sewage results in considerable turbulence andinterruption of direct flow of sewage, and the vent of such fittings isnot located so as to provide an equal escape of the gases arising fromthe said tributory streams or to allow the even fiow thereof withoutretardation. These disadvantages of the old and common form of doublefitting, have been fully overcome in my improved form of connection, inwhich I, by supplying the fitting with a curved directional partitioninterposed between the inlets of the tributory closet passageways,thereby causing arcuate discharge of the sewage into the main streamthereof have overcome the turbulence of the confluence of streamspresent in the old form of structure, and by positioning the vent at theside of the partition instead of above the broad face of the same, have,while securing a better and more equal carrying ofi of the gases andbetter ventilation, succeeded in making a more compact fitting taking upmuch less space than the former fitting, and in dispensing with thenecessity of putting in false floors or ceilings.

My invention further consists of other novel features of constructionand combinations and arrangements of elements or parts illustrated inthe drawing and as will be hereinafter more particularly set forth anddescribed.

Attention is hereby directed to the drawing, illustrating a preferredform of my invention, in which similar numerals of designation refer tosimilar parts throughout the several views, and in which Figure 1 is aview in perspective of my improved double fitting, showing parts brokenaway for the purpose of better illustration;

Fig. 2 is a transverse section on line 2-2 of Fig. 3, looking in thedirection of the arrows, and

Fig. 3 is a vertical section on line 3-3 of Fig.

2, looking in the direction of the arrows.

Referring to the drawing, the double pipe fitting 4 is constructed asshown of a-pair of pipe members joined by an interjacent party wall, andcomprises first, the member 5-, horizon} tally disposed and having inalignment therewith arms i; and i for connection with the main run ofpipe for sewage disposal; second, the member 8, having in parallelrelation with the part 5 the pipe branches 9 and I0, each designed forconnection with the plumbing of a separate water closet, and eachconnected with and laterally discharging into the member 5; and third,the vent i! for the carrying off of gases arising from the sewageflowing through the branches 9 and ill at their juncture with the member5. In order that the streams of sewage coming from the two closets may,at their confluence, be properly diverted and directed into the mainstream of sewage passing through the fitting without turbulence, Iprovide the member 8 with the partition l2, which is arcuate or curvedin the direction of flow of the current of said main stream of sewage,so that each of the said tributory streams from said closets laterallydischarging into the member 5 is positively required to take sucharcuate or curved direction and course. At the same time, the vent lllocated immediately above the edge of said partition, and centeredtherewith, affords a ready means for venting and oomplished.

stream of sewage coming from another closet similarly located; each ofsaid tributory streams entering the'main stream arcuatel y in thegeneral direction of the current thereof, because of the curved contourof'the partition I 2; thereby avoiding turbulence or eddy currents atthe confluence of the two tributory streams. By locating the vent lljust above the top edge of the partition l2, as shown'in Figs. 1 and 3,so as substantially equally to divide the gases arising fromthe saidconfluence of streams, I not only secure greater compactness ofconstruction and economy over said type of prior double fittings, but Ialso obtain a better and more satisfactory Venting and disposition ofsaid gases and more even flow a of sewage than'I believe has heretoforebeen ac- My invention may be embodied in other specific forms withoutdeparting from the spirit or essential characteristics thereof. 7 Thepresent embodiment, as above set forth, is therefore to be considered inall respects as illustrative and not restrictive, the scope ofmyinvention being indi-v cated by the appended claims rather than by theabove description, and all changes which come within the meaning andrange of equivalency of the claims are therefore intended to'be embracedtherein. 7

What I claim and desire to secure by Letters Patent is: p

1. A double fitting for connecting the bends of two water closets withthe main sewage run, comprising a pair of pipe members disposed inhorizontal parallel relation and joined by an interjacent party wall;one of said members hav ing a passageway therethrough formed to connectwith the main run of pipe; and the other member having ends formed toconnect with the bends of said closets and having two outlets leadingfro-m opposite directions through an opening in said party wall intosaid passageway; and a single curved directional partition verticallydisposed inside and secured to said other member and positioned todischarge arcuately the two tributary streams of sewage coming therefrominto the main sewage through said passageway in the general direction ofthe flow thereof. a

'4 two water closets with the main sewage rufi, comprising a pair ofpipe members disposed in horizontal parallel relation and joined by aninterjacent party wall; one of said members having a passagewaytherethrough' formed to connect with the main run of pipe; and the othermember having ends formed to connect with the bends of said closets andhaving two outlets leading from opposite directions through an openingin said party-wall into said passageway; and a single curved directionalpartition' vertically disposed inside and secured to said other memberand positioned to discharge arcuately the two tributary streams ofsewage coming therefrom into the main sewage through said passageway inthe general direction of'the flow thereof; and upwardly extendingventing means connected with said fitting above said partition forventing and carrying ofl gases arising from sewage passing therethrough.

3. A double fitting for connecting thebends of two water closets withthe main sewage run, comprising a pair of pipe members disposed inhorizontal parallel relation and joined by an interjacent party wall;one of said members having a passageway therethrough formed toiconnectwith the main run ofpipe; and the other member having ends formed toconnect with the bends of said closets and having two outlets leadingfrom opposite directions through an opening insaid party wall into saidpassageway; and a single curved directional partition verticallydisposed inside and secured to said other member and positionedtodischarge arcuately the two tributary streams of sewage comingtherefrominto the main sewage through said passageway in the generaldirection of the flow thereof; and upwardly extending Venting meansconnected with saidefitting for ventingland carrying off gases arisingfrom 'sewage passin'g therethrough, said means consisting of an outletpipe centrally located directly'above the upper edge of said directionalpartition and extending upwardly therefrom so as to cause the gases topass upwardly from the said streams substantially equal amounts. drawntherefrom and equalizing the vent thereof. i

v r v GEORGE F. RADCLI F FE.

REFERENCES CITED 7 p The following referenlces are of record in the fileof this patent: 7 My 7 UNITED STATES PATENTS Number V 7 Name Date598,327 Schlemmer Feb, 1, 1898 788,803" Walker l May 2,1905 884,326Emery Apr. 7,1908 2,237,672

